The order revoking appellant’s probation and sentencing him to prison is affirmed, but this case is remanded for resentencing of appellant. The present sentence does not specifically set forth the period of credit time to be allowed as required by Section 921.161(1) Florida Statutes (1975); Brooks v. State, 349 So.2d 794 (Fla.2d DCA 1977). The appellant does not have to be present at resentencing.